Combination of electroreduction with biosorption for enhancement for removal of hexavalent chromium
文献类型：期刊论文
| 作者 | Hou, Yining ; Liu, Huijuan ; Zhao, Xu ; Qu, Jiuhui ; Chen, J. Paul |
| 刊名 | JOURNAL OF COLLOID AND INTERFACE SCIENCE
 |
| 出版日期 | 2012 |
| 卷号 | 385页码:147－153 |
| 关键词 | Biosorption Electrochemical reduction Seaweeds Hexavalent chromium |
| ISSN号 | 0021-9797 |
| 中文摘要 | Hexavalent chromium is one of the most toxic heavy metals in aqueous solutions. It has been well documented that the brown seaweed can be used as a promising biosorbent for the sequestration of this heavy metal from wastewater. However, the uptake of Cr(VI) is reportedly a rather slower process: the sorption equilibrium can only be established after a few days, much slower than a few hours for the trivalent chromium ion. In this study, we developed a novel technology of electrochemically assisted biosorption (ECAB) system for the enhancement of the treatment efficiency. It was found through our study that the removal efficiencies of Cr(VI) and total chromium were greatly enhanced by 48.1% and 51.3%, respectively, with the application of -1.0 V in the ECAB system. The conversion of Cr(III) due to the electroreduction of Cr(VI) and the higher pH due to the cathodic H-2 evolution created a favorable condition for the uptake of chromium onto the modified seaweed (MSW). The reduction and adsorption of Cr(VI) by MSW was proved to play a minor role in the removal. Both direct electroreduction and indirect electroreduction by atomic H contributed to the reduction of Cr(VI). (c) 2012 Elsevier Inc. All rights reserved. |
| WOS记录号 | WOS:000308511600018 |
| 公开日期 | 2014-11-04 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/7797]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Hou, Yining,Liu, Huijuan,Zhao, Xu,et al. Combination of electroreduction with biosorption for enhancement for removal of hexavalent chromium[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,2012,385:147－153. |
| APA | Hou, Yining,Liu, Huijuan,Zhao, Xu,Qu, Jiuhui,&Chen, J. Paul.(2012).Combination of electroreduction with biosorption for enhancement for removal of hexavalent chromium.JOURNAL OF COLLOID AND INTERFACE SCIENCE,385,147－153. |
| MLA | Hou, Yining,et al."Combination of electroreduction with biosorption for enhancement for removal of hexavalent chromium".JOURNAL OF COLLOID AND INTERFACE SCIENCE 385(2012):147－153. |
入库方式： OAI收割
来源：生态环境研究中心
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